SOpen

LTX-2.3

Lightricks

The open-source flagship. First open model to close the gap with proprietary leaders.

SClosed

Kling 3.0

Kuaishou

Two models in one: V3 is the prompt-driven AI Director for creative freedom. O3 is the reference-driven consistency engine for commercial production. Both share native 4K, multi-shot, and 5-language audio.

AClosed

Adobe Firefly Video

Adobe

The only IP-indemnified model. Trained exclusively on licensed content.

Pick LTX-2.3 if…

You want open-source audio-video, or studios needing IP control.

Pick Kling 3.0 if…

You want v3: Experimental narratives, populated group scenes (3+ chars), rapid ideation from scripts. O3: Brand advertising (product/character identity lock), serialized narratives (consistent face+voice across episodes), e-commerce (readable text+product locking). Both: multilingual commercial content, social media hooks..

Pick Adobe Firefly Video if…

You want commercial-safe production, or Adobe workflow integration.

Specifications

Maker
Lightricks
Kuaishou
Adobe
Source Type
Open Source
Closed Source
Closed Source
License
Apache 2.0 (<$10M rev)
Commercial (paid tiers)
Commercial (subscription)
Architecture
DiT (22B) + Rebuilt VAE
Unified Multimodal (MVL) / Two models: V3 (prompt-driven) + O3 (reference-driven)
Proprietary
Parameters
22B
Undisclosed
Undisclosed
Max Resolution
4K
Native 4K (3840x2160) at up to 60fps
4K
Max Duration
20s
3-15s (up to 6 shots per generation)
5-10s
FPS
Up to 50
Up to 60
24
Native Audio
Yes
Yes
No
ComfyUI Support
Yes
No
No
Fine-tunable
Yes
No
No
Min VRAM
32GB (full) / 12GB (distilled)
Cloud only
Cloud only
Cost / Second
$0.04
$0.10
Credits
Inputs
T2V, I2V, V2V, Audio-cond
T2V, I2V, Multi-shot (6 cuts), Element References (O3), Video Reference (O3)
T2V, I2V
On Floyo
Yes
No
No

Strengths & Trade-offs

LTX-2.3

Strengths

  • +22B params
  • +true 4K at 50fps
  • +first open model with synced audio
  • +rebuilt VAE
  • +native portrait

Trade-offs

  • -Full 4K needs 48GB
  • -dialogue lip-sync inconsistent
  • -in-scene text flaky

Best For

  • Local 4K production
  • open-source audio-video
  • studios needing IP control

Kling 3.0

Strengths

  • +TWO MODELS: V3 = prompt-driven (3+ characters, AI Director, structured storytelling)
  • +O3 = reference-driven (Elements 3.0, video character refs 3-8s, Signature Voice binding). Native 4K at 60fps. Multi-shot up to 6 camera cuts with per-shot control (duration, size, angle, camera movement). Native lip-sync in EN/CN/JP/KR/ES + dialects + bilingual code-switching. Motion Brush for drawn motion paths. Best text rendering in AI video (signs, logos, price tags). Character identity lock across shots. Start/end frame conditioning.

Trade-offs

  • -Multi-shot not compatible with first/last frame feature. O3 optimized for 1-2 elements (V3 better for 3+ characters). Credit pricing: 12 credits/sec for 1080p+audio, 9 credits/sec for 720p+audio. Audio can be less refined than Veo. Transitions between shots can be clunky. 15s max duration.

Best For

  • V3: Experimental narratives, populated group scenes (3+ chars), rapid ideation from scripts. O3: Brand advertising (product/character identity lock), serialized narratives (consistent face+voice across episodes), e-commerce (readable text+product locking). Both: multilingual commercial content, social media hooks.

Adobe Firefly Video

Strengths

  • +Only IP-safe model (trained on licensed content)
  • +multi-model access
  • +Adobe ecosystem

Trade-offs

  • -Short clips
  • -slower generation

Best For

  • Commercial-safe production
  • Adobe workflow integration